In the song "Dayenu" we say that if
G-d brought us to Mount Sinai and did not give us the
Torah it would have been enough. How can that be? Could you
explain?

Dear Professor David Mitchell,

Certainly we don't mean that we
could envision life without the Torah, or without any
of the fifteen "Ma'alot" mentioned in the song of Dayenu.
What we mean is that we have reason to be thankful for His bringing
us to Mount Sinai -- just being at Sinai bestowed upon
us great benefit. The incredible unity that we experienced, the
cleansing from the effects of the sin of Adam and Eve, and the
closeness to G-d that we achieved, were all so precious that they
deserve thanksgiving and praise in their own right.